reef pinnacle

reef pinnacle

[′rēf ‚pin·ə·kəl]
(geology)
A small, isolated spire of rock or coral, especially a small reef patch.
References in periodicals archive ?
Episode C3 is characterized by the progressive onlap of facies 5 (which was filled by Marinellaoolitic facies) over the top of the reef pinnacles, involving the eventual filling of the irregular topography left by the reef palaeohighs at the sea floor.